West Coast USA: Pay Attention, Cascadia May Be Ready to Rupture

Ahem.. uh .. that was a interesting video, but I don't know if it was supposed to be a joke or not. And just to disprove on major ignorance in the
video: Earliest records of Paltypus's are 100,000 years old. A relatively new species. No .. Earth is not growing, it would collapse in on its
self (unless gravity is a conspiracy too!)

I keep hearing about these earthquakes around the Portland area but I'm yet to feel one. They're pretty common though, personally I don't think
it's something to worry about.

Dude, WHEN CSZ goes you might be changing your tune... Portland will most certainly be toast, I'm much farther inland (SE corner WA state) but I'm
even expecting some repercussions... But you keep on not worrying...

z and oli are both saying that TA is not fearmongering enough, and the situation is actually much worse than even I envisioned.

Now THAT is pretty damn bad!

But seriously folks, I mean look at this:

I have placed arrows next to these three quakes which are concerning me even more, because they are right on the leading edge of the subduction line,
which could indicate that portion is starting to come unglued. Again, none of these quakes anywhere in this are that rare. Look at the historical
seismicity for that area, and you will see.

What is concerning me is the short time period in which they are occurring. I cannot stress that enough. The next days and weeks are crucial with
this. We MUST stay on top of this. No, correction: those LIVING there MUST stay on top of this. I am just a bystander from afar, observing from
beyond.

And just in (unrelated): mark- 11:24 PM, just heard a loud boom of some kind.

For the length of time thats a fair number of shakes for this neck of the woods. Even though we are primed and ready, little happens.

Those intermediate little EQs are what Im trying to identify and see if patterns emerge for prediction purposes. Ive got to go back over all of them
and do a timeline. I call those transition zone EQs, and I have a suspicion that they are indeed a precursor to bigger quakes.

But here's the clincher for me. I was meditating on a bluff in Trinidad today around 4 to 5. When I get deep in meditating, and Im on the earth, I am
exquisitely aware of every minute vibration. And she was rumbling today. Twice. It hasnt shown up on any maps, but I know what I felt, and Im pretty
sure it was magma moving. I have never experienced that but know that magma movement is completely different than plates interacting. They are called
volcanic/magmatic tremors. A peculiar motion, both up and down and side ways at the same time but not noticeable unless one is in an altered state as
I was. And it can last a long time with peaks (called drumbeats) and valleys but always grumbling. And it sure felt like that today.

But this isn't anywhere near the volcano belt, and that belt, Mt Shasta and Lassen being the southern end, is moving southeast. Hmmmmmmmm?

ON EDIT: The feeling reminded me of something that happened at Mt St Helens. Called drumbeat EQs, the MSH ones were different than most. Two theories
came forth. One was the widely accepted one of magma lurching as it proceeded down the channel. The other was one Id never heard before. One scientist
theorized that the type of EQs at MSH were caused by pressure built up from steam caused by water and magma interacting. Picture the top of a kettle
boiling and the top popping off steam every once in a while while whistling and vibrating away. And that is the best descriptor of what I felt today,
an inner earth steam kettle.

I see you know it well, Olivine. It has always been home for me, even when living thousands of miles away. There is something so special about that
place, its sad to think that it could get totally rearranged when the big one hits.

Originally posted by zworld
It has always been home for me, even when living thousands of miles away. There is something so special about that place, its sad to think that it
could get totally rearranged when the big one hits.

True for me as well; it will always be home. There is something about this area that forces me to be calm, awed, inspired and...most importantly --
humbled.

BTW, the small rumbles are still going on in your backyard. This was at 17:23 UTC (9:23 am Pacific time). Both seismos are in Petrolia.

ETA: I just wanted to emphasize that these "rumbles" are small -- too small to show on the USGS listings. Still shakin, though.

Originally posted by zworld
It has always been home for me, even when living thousands of miles away. There is something so special about that place, its sad to think that it
could get totally rearranged when the big one hits.

True for me as well; it will always be home. There is something about this area that forces me to be calm, awed, inspired and...most importantly --
humbled.

BTW, the small rumbles are still going on in your backyard. This was at 17:23 UTC (9:23 am Pacific time). Both seismos are in Petrolia.

ETA: I just wanted to emphasize that these "rumbles" are small -- too small to show on the USGS listings. Still shakin, though.

edit on 2/11/2012 by Olivine because: extra info

edit on 2/11/2012 by Olivine because: (no reason given)

Olivine, that wouldn't show up on the swarm map would it. Too far south, isnt it. I never thought about that. slow slip happening outside the swarm
map. Where did the waveform graph come from. I think it might show magmatic tremors sometimes as that area southern Humboldt and Mendocino Co are over
the slab gap where magma is closest to the surface anyplace in North America, and maybe that would explain the magmatic tremors I thougt I felt.

Hi zworld.
I just posted a map showing tremor for the past 6 months in the "deep tremor" thread. It shows tremor out to sea, west of Ferndale. If the plate
boundary lines are an indication of coverage area, it looks like it goes as far south as Redway and Covelo, so it should be able show tremor nearer to
you--if it happens.

The above traces are from GEE--Global Earthquake Explorer (love it--TA has a thread somewhere on here, that gives instructions on usage--very helpful.
Here it is ).
As far as picking up tremor of magmatic origin, I've never noticed anything close to an harmonic tremor trace on these seismos near Petrolia. Might
be possible if you looked at stations a little farther south, near Clear Lake, The Geysers, Cobb Mtn and Lake Pillsbury.

On another note, I am seeing some things up in northern Washington State that I am not liking at all. I think there might be a quake coming soon, and
maybe today. A key station is down at the moment, so I don't want to issue A2 until I can see it. But...just...umm...stay alert folks.

To be clear: I said a quake. Of some kind. Not necessarily the "Big One". Just testing some things.

edit on Mon Feb 13th 2012 by TrueAmerican
because: (no reason given)

And Oli, this has nothing to do even with what you sent me. It is based on some particular things I am relating to what I have mentioned earlier in
the thread.

On another note, I am seeing some things up in northern Washington State that I am not liking at all. I think there might be a quake coming soon, and
maybe today. A key station is down at the moment, so I don't want to issue A2 until I can see it. But...just...umm...stay alert folks.

To be clear: I said a quake. Of some kind. Not necessarily the "Big One". Just testing some things.

edit on Mon Feb 13th 2012 by TrueAmerican
because: (no reason given)

And Oli, this has nothing to do even with what you sent me. It is based on some particular things I am relating to what I have mentioned earlier in
the thread.

edit on Mon Feb 13th 2012 by TrueAmerican because: (no reason given)

You called it TA. Im going to look for specifics but at 1:08 Eureka CA took a fair rumbling. More sonn.

SO.... I too am thinking this is NOT GOOD! Not good at all. I live close to the New Madrid so as of now I am in no danger, however my thoughts and
prayers for the people of Northern California. REALLY hope and pray this unsettling will settle and not cause it to fully rupture!

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